freebsd stable - Nov 2018 - FreeBSD-12.0-BETA1-i386-bootonly.iso will not boot

Nov. 6, 2018I have been test booting FreeBSD-12.0-BETA1-i386-bootonly.iso
without success this morning.Previously, the same no boot for a.k.a.
"BETA2" and "BETA3", as well.Checksums for these discs match
okay.Suggestion, was made by others, that recent changes to boot-loader may have
caused this.Suggestions or workarounds would be
appreciated.Sincerely,cksalexander at q.com

----- Forwarded Message -----
From: CenturyLink Customer <cksalexander at q.com>
To: freebsd-stable <freebsd-stable at FreeBSD.org>
Cc: cksalexander <cksalexander at q.com>
Sent: Tue, 06 Nov 2018 20:20:49 -0500 (EST)
Subject: FreeBSD-12.0-BETA1-i386-bootonly.iso will not boot

 body {height: 100%; color:#000000; font-size:12pt; font-family:arial,
helvetica, sans-serif;}Nov. 6, 2018
I have been test booting FreeBSD-12.0-BETA1-i386-bootonly.iso without success
this morning.
Previously, the same no boot for a.k.a. "BETA2" and "BETA3",
as well.
Checksums for these discs match okay.
Suggestion, was made by others, that recent changes to boot-loader may have
caused this.
Suggestions or workarounds would be appreciated.
Sincerely,
cksalexander at q.com